"In a world of people obsessed by turning the tiniest idea into something profitable, Dr Richard Hipp's best-known software stands out for two reasons - he actively disclaims copyright in it; and at a time when multi-megabyte installations are booming, he has a self-imposed limit on the size of his product: 250KB. And he's stuck to both aims. 'I think we've got 15 kilobytes of spare space,' he says of the headroom left in the code."